Crown block



Nov. 23 L926.

q 1,607,663 A. BOYNTON GROWN BLOCK Original Filed April 27, 1925' I N VEN TOR. uleacauder Boy/$020 A TTORNEYS.

Patented Nov. 23, 1926.

U -NIT ED STA TE S PA TIENT LFFFICE.

ALEXANDER BOYNTON, OF SAN AN T-ONIO, TEXAS.

Original application filed Apri127, 1925, Serial No. 26,251. "Dividedand this application filed April28,

This invention relates toan improvement in crown blocks, designed foruse with gin poles and especially adapted to facilitate stringingup forthe purposeof pulling rods and otherwise caring for wells, particularlyoil wells. The cost of derricks "ranges so high that most operators insmall producing fields use derricks for drilling only. hen the well hasbeen drilled a gin pole is "set up over the well fertile purpose ofoperating the sam'e.

The present application is a division of my co-pending application filedApril 27, 11925, Serial Number 26,251.

The object of the invention is to provide a novel form of crown blockfor use with a gin 'pole, the-'cr0wn block being of simple and durableconstruction, reliable and effective in operation-and easy andcomparatively inexpensiveto manufacture. The crown block isso'constructed andorganized as to *be properlyand firmly supported o'nthe gin pole while providing the desired mounting forthe blocks orpulleys withoutinterfering with the guy lines and while providing amaximum amount'of clearance between the pulleys and the well whereby "tofacilitate the removal and handling of long sections of tubing.

Other objects and advantages residein certain novel featuresof theconstruction, arrangement and combination of parts which willbe"hereinafter more fully described and particularly pointed out in theappended claims, reference being had to the accompanying drawingsforming a 'part of this specification, and in which Figure 1is=a"view-in side'elevation showing a crown block em'bodying the presentinvention, the upper ends of the gin pole being illustratedindotted'lines, I

Figure 2 is a *view'in rear elevation of'the crown block shown in Figure1,

*Figure 3 is ajplan view 'of'the crown block, and

Figure i'is a sectional view on the line i i of Figure 1.

Referring to 'thedra'win'gs, the numeral 1 designates generallyaginpole. At the upper end of the gin pole a-crown block, designatedgenerally at 10, is provided. The crown block 10 includes a mainsupporting plate 11 designed torest on the top'of the gin pole andhaving integral depending flangeslQ-enga-geable with the front and '23which is the point of attachment of the Serial 'No. 105296.

baclz facesof the upper end of the gin pole to prevent backward orforward =n'iovement of the crown block. Centrally of the plate 11 aninternal web 13 is formed and extends vertically downwardly 'fromtheplate. The web 13 litsin between the standards 2 ofthe gin pole when apair of standards are employed. Ifa ginpole having a single mast orstandard is used, the mast or standard has-a centrally disposedvertical' slot cut in itsup'per end to receive the web :13. 7 Aniattaching bar 14: is integrally formed with the web 13 'andhasbolth'oles l5 adj acent 'itsends adapted to co-act with pair of machinebolts for fastening the 'crownblock 1n position. If a gm pole of thetype employing but a -single mast is used then a Ubolt ex tends aroundthe :mast and has its legs extended through the openings 15 and, of

course, thrcaded to co-act with the nuts whichengage the attaching bar14. An outwardly extending lug an enlarged web 21 which is integral withthe arm andwith the plate. I The upperend 'ofthe alrm '20 projectsbeyond or forwardly ofthe plate 11 and is substantially horizontal.On'theupper side of the upper end of thearm 20anotch 'orseat 22 isprovided "for the purpose of receivingthe small trigging-up block usedfor stringing up the heavy main block. The portion of the arm 20 "whichunderlies the "seator notch 22 is cut away- 01* beveled'inwardly,asishown to advantage in .Fig. 6, so that the requisite clearance isprovided to accommodate ithe hook of 'therigging-up block "so as to"per- 'mit' the block to hang vertically andswivel perfectly. Forwardlyv of the seat '22 and below-the samean open ng 23*is providedt'o receivethe front guy wire. The opening front guy wire to the crown block islocated well above the block and forwardly thereof and is out ofthe wayof the operating-lines,

themain block and the "other elements of the crown block. A main blocksupporting hook 25 is integrally formed with the web 21, plate 11 andfront flange 12 and is designated to provide a support for the main orpeg block. The hook 25 is located above the top of the mast and thiseffects the economy in the space between the hitch and the well andenables longer objects to be removed from the well than was possiblewith gin poles heretofore used. It is to be noted at this point that thehook 25 and the hook 18 are opposite each other and this feature causesthe load to be applied squarely upon the top of the gin pole.

The crown block is especially designed to facilitate the stringing upfor the purpose of pulling rods and tubing and otherwise car ing forwells, especially oil wells. The advantages of the block may beappreciated when it is understood that the cost of the derrick rangesfrom five hundred to a thousand dollars. Most operators in smallproducing fields use derricks for drilling only. lVhen a well has beenfinished a gin pole is set up over the well for the purpose of operatingthe same. The cost of the gin pole and the crown block constituting thisinvention, with the crown block made of cast steel, is about fourteendollars. The guy wires and other auxiliary equipment, the cost of laborand materials, make the balance of the cost aggregating between sixtyand seventy dollars.

I claim:

1. In combination with a gin pole, a crown block having a horizontalplate resting on the top of the gin pole and provided with dependingflanges engageable with the gin pole to prevent backward or forwardmovement of the crown block, the crown block also having a depending webengageable with the gin pole for the purpose of preventing lateralmovement of the crown block, means for fastening the crown block to thegin pole, an arm extending upwardly and forwardly from the plate andhaving a seat for a rigging-up block adjacent its upper end adapted toreceive the front guy wire, a main block supporting hook integral withthe plate and the arm and located above the plate, and a guy line hookconnected with the web and located On the opposite side of the crownblock from the main block supporting hook.

2. In combination with a gin pole having a pair of standards, a crownblock having a web fitted between the upper ends of the pair ofstandards to prevent lateral movement of the crown block, meansco-operable with the standards for preventing backward and forwardmovement of the crown block, means for fastening the crown block to thestandard, said crown block having an arm extending upwardly andforwardly therefrom and provided with a guy line opening adjacent itsupper endya main block supporting hook carried by the crown block abovethe gin pole and below the guy line opening, and a dead line attachinghook connected with the crown block on the opposite side thereof fromthe main block supporting hook.

3. In a device of the character described, a crown block comprising ahorizontal plate having depending flanges at its front and back edges, acentrally disposed and downwardly extending web terminating in a deadline supporting hook, said web having an attaching bar provided withbolt holes, said bar having integral therewith a lug provided with guyline openings, an arm extending upwardly and forwardly from the plateand having its upper end provided with a seat to receive a rigging-upblock, the arm being recessed below the seat to ermit the rigging-upblock to hang vertically and to swivel perfectly, said arm also having afront guy wire receiving opening adjacent its upper end, and a mainblock supporting hook integral with the plate, the front flange and thearm and rotated just above the plate.

4. In a device of the character described, a crown block adapted for useon the upper end of a gin pole and including a plate having dependingflanges adapted to engage portions of the upper end of the gin pole toprevent fore and aft movement of the crown block, and a depending webalso adapted to engage portions of the gin pole to prevent lateralmovement of the crown block.

5. In a device of the character described, a crown block having a plateadapted to rest on the top of the gin pole, means for securing the platein position, a main block supporting hook located just above the plate,an arm extending from the plate to a point above and forwardly of themain block supporting hook and having a guy wire receivmg opening.

6. In a device of the character described, a crown block having a plateadapted to rest on the top of the gin pole, means for securing the platein position, a main block supporting hook located just above the plate,and an arm connected with. the plate and eX- tending above the mainblock supporting hook and having a seat adapted to receive a rigging-upblock;

7. In a device of the character described, a crown block having a plateadapted to rest on the top of the gin pole, means for securing the platein posit on, a main supporting hook on said crown block and an armconnected with the plate and extending above the main block supportinghook and having a seat adapted to receive a riggingup block, said armbeing recessed below the seat to permit the rigging-up block to hangvertically and sw vel perfectly.

ALEXANDER BOYNTGN.

